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Water system · PWSID CA5010021

DENAIR COMMUNITY SERVICES DISTRICT

DENAIR, CA · ~5,090 people served

Check your exact address → DENAIR overview
100
Excellent
PurityRadar safety score

PWSID

CA5010021

State

California

City

DENAIR

Population served

5,090

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

8

Violations on record

0

Unaddressed

3

Health-based

14

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2019. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Dec 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2013 Resolved
Monitoring & reporting · EPA contaminant 3002 began Sep 2013 Resolved
Other · EPA contaminant 7000 began Jul 2001 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 2001 Resolved
Monitoring & reporting · Total coliform began Apr 1994 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved
Monitoring & reporting · Total coliform began May 1993 Resolved

Recent enforcement actions

  • State action · SOX Jul 2019
  • State action · SOX Jan 2015
  • State action · SFL Jan 2015
  • State action · SOX Jan 2014
  • State action · SFL Dec 2013
  • State action · SIA Oct 2013
  • State action · SFL Nov 2001
  • State action · SOX Nov 2001

This profile is built from EPA public records for system CA5010021 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.